The text reads: “Just imagine how far you can go with a little bit of English.”

Ivis Buric, a spokeswoman for the American Institute in Zagreb — the local language school that posted the billboards — says the advertising campaign was not intended to mock the U.S. first lady in any way.

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“There are different opinions about Melania Trump, but the fact is that she is the first lady,” Buric said. “She had to do a lot, including delivering speeches in English and addressing huge crowds in a foreign language.”

Melania Trump was born in neighboring Slovenia under the name of Melanija Knavs. She left Slovenia in her 20s to pursue an international modeling career before meeting Donald Trump at a Fashion Week party in 1998.